How does age affect creatinine levels?

As people age, muscle mass tends to decrease, which can lead to lower creatinine production. However, aging can also cause a natural decline in kidney function, which may result in elevated creatinine levels. It’s important to assess creatinine levels in the context of age, as older adults may have slightly different reference ranges. Regular kidney function tests are recommended for older adults to monitor kidney health, especially if there are underlying health conditions that can affect kidney function. After the Test: Interpretation of Results, Management Strategies, and Follow-Up